Mechanical movement.



7 c. PAULI. MECHANICAL MOVEMENT. APRLICATION ElLED DCTA. I9l 6- 1,252,485, Patented Jan. 8,1918.

2 SHEETS-SHEET I 'C PAULL MtCHANlCAL MOVEMENT.

APPLICATION FILED-OCT. 4. 1916.

Patented Jan. 8,1918.

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CARL PAULI, OF SOUND BEACH, CONNECTICUT, ASSIGNOR TO GAR'W'OOD COMPANY, OF GARWOOD, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MECHANICAL MIOVEMENT.

Specification of Letters Patent.

Patented J an. 8, 1918.

Application filed. October 4, 1916. Serial No. 123,615.

To all whom it may concern:

Be it known that I, CARL PAULI, a citizen of the United States, residing in Sound Beach, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification.

This invention relates to a mechanical movement in general, such as illustrated in my copending application Serial No. 51187, filed September 17, 1915, and more particularly to centrifugal hammers. The subjectmatter forming the basic feature of the present specification hasbeen divided out of the aforesaid copending application.

The present invention particularly contemplates the provision of a centrifugal hammer which encircles a rotatable driving member and is provided with a guiding member surrounding said centrifugal hammer.

The present invention further contemplates the structural features which particularly adapt the present invention for use on percussion drills or dental pluggers.

These and other'features, capabilities and advantages ofthe invention will appear from the subjoined detail description of specific embodiments. thereof, illustrated in the accompanying drawings in which- Figure 1 is an end elevation of one embodiment in which a guiding member and disk member constitute an open housing for the. hammer.

Fig. 2 is a side elevation of the embodiment illustrated in Fig. 1, with the hammer in drill striking position.

Fig. 3 is a side ,elevational view similar to Fig. 2, with the hammer out of drill striking position.

Fig. 4 is an end elevation of another embodiment, in which the hammer is disposed in a closed housing. r 'Fig. '5 is a side elevation of still another embodiment similar to that illustrated in Fig. 4C, and in which the anchoring member for the hammer guiding member is flattened out on one side. a

Fig. 6 is'a side elevation, similar to Fig. 5, of. still another embodiment in which the hammer spring is dispensed with.

[In the embodiment illustrated in Figs. 1, 2, and 3, there is provided an actuating shaft 10 which may-be driven 'by'any suitable for the guiding member 13.

sourceof power, not shown. On the shaft 10 is fixedly secured the member 11 which comprises a disk member 12 through which the shaft 10 extends, and the hammer guide member such as the crescent-shaped. member 13 extending laterally from said disk 12 and parallel to said shaft 10, the disk member 12 constituting an anchoring member On the shaft 10, and inside of the guiding member 13 is mounted the hammer 1 1 which is annular in form and encircles the shaft 10, the guiding member 13 maintaining the hammer eccentric to said shaft 10;

The horns 15 of the guiding member 13 preferably are of sufficient extent so that the distance between their free ends is less than the diameter of the outer periphery of the hammer 14, whereby such horns may serve as an anchoring member for the hammer member 14, especially to prevent such hammer from contacting with the shaft 10.

To form a cushion for the hammer 14 and also to flexibly maintain the hammer 14 in its outermost position, the flat spring 16- is provided, such spring being disposed in the recess 17 formed in the bottom of the guiding member 13.

When the aforesaid arrangement is to be used for drills and the like, a tool holder 18 may be provided with its hammer engaging end 19 disposed approximately in line with the outer periphery of the guiding member 13. The outer periphery of the hammer 11 will be such relative to its thickness, the outer periphery of the guiding member 13, and the thickness of the shaft 10, that it may project from between the horns 15 a considerable distance beyond the outer periphery of the guiding member 13 I and thus engage the end portion 19 whenever the opening between the horns 15 are disposed adjacent to the end portion 19.

The embodiment illustrated in Fig. 4; comprises a shaft 10, a member 11 embracing a disk portion 12 and a guiding member 13', a hammer 14:, a spring 16, and tool holder 18, all substantiallyidentical with the parts bearing like reference characters, not primed, in Figs. 1, 2and 3. In the present embodiment, a disk member 20 is provided through which extends the shaft 10 and which is secured to the guiding member 13 by any suitable means, such as the screws 21 illustrated in the present. instance. The outer 1 identical with the parts bearing like referonce characters, that are primed, in Fig. 4. In the present embodiment a member 11*, embracing a disk portion 12 and a guiding member 13 is provided in which the guiding member 13 is substantially identical with the guiding member 13 of the embodiment illustrated in Fig. l, and inwhich the disk portion 12 has one end cut away so that the disk portion 12 is flat adjacent to the horns 15 of the guiding member 13, such flat side being designated22 and extending from one horn 15 to the other horn 15.

The embodiment illustrated in Fig. 6 comprises a shaft 10", a member 11 embracing a disk portion 12 and a guiding portion 13*, a hammer 14:, and a tool holder 18", all substantially identical with the parts bearing like reference characters that have the exponent a in Fig. 5. In the present embodiment a spring, such as the spring 16 of the embodiment illustrated in Fig. 5, is

dispensed with. The inner periphery of the guiding member 13 is preferably such, relative to the outer periphery of the hammer 14, that the hammer 14* will always be maintained eccentric to the shaft 10*.

It is obvious that various changes and modifications may be made to the details of "construction without departing from the general spirit of the invention.

I claim: 1

1. The combination with a rotatable shaft, of an annular-hammer encircling said shaft and loosely mounted thereon; and means disposed externally of said hammer for holding and guiding it eccentric to the shaft.

2. The combination with a rotatable shaft, of an annular hammer encircling said shaft, a crescent-shaped member disposed externally of said hammer for guiding said hammer, the horns onsaid crescent-shaped member being disposed a sufficient distance from oneanother to permit thehammer to project therefrom into striking position.

3. The combination with a rotatable shaft, of an annular hammer encircling said shaft,

a crescent-shaped member for guiding said hammer, and means for anchoring said crescent-shaped member externally of said ham mer and to said shaft, the horns of said crescent-shaped member being spaced a sufficient distance from one another to permit the hammer to project therefrom into striking position. f

- 4. The combination with a rotatable shaft,

of an annular hammer encircling said shaft,

said crescent-shaped member, and a flat spring disposed therein and engaging said hammer to flexibly maintain the hammer in projected position.

5. The combination with a rotatable shaft, of an annular hammer encircling said shaft, means for guiding said hammer eccentric to said shaft, a disk member secured to said shaft from which said guiding means extends laterally, and a second disk member through which said shaft extends and secured to said guiding means so that said disk members and guiding means will form. a housing with one another in .which the hammer is .floatably mounted.

6. In a mechanical movement, a revoluble drive shaft; a single-piece cylindrical floating hammer-member loosely carried by the shaft having its axis parallel with the axis of the drive-shaft; a guiding-member hous-' normally forcing the cylindrical floatinghammer-member out through the peripheral orifice between the horns ofthe crescent of the housing to the limit of its play therein, so as to constantly maintain the floating hammer-member axis eccentricto the axis of rotation of the shaft and crescent-shapedmember. 7 Y 7 8. In a mechanical m0vement,-the combination with a rotatable shaft; of an annular hammer-member encircling and loosely mounted on said shaft; andamemberfixed to said shaft and guiding the annular member eccentric to the shaft. 7

9. In a mechanical movement, the combination with a rotatable shaft; of an annular hammer-member encircling and loosely mounted thereon, and a crescent-shaped member fixed to saidshaft and guiding the annular member eccentric to the shaft.

10. In a mechanical movement, a revoluble drive-shaft; a single-piece cylindrical the shaft having its axis parallel with the axis of the drive-shaft; a guiding member housing open at a portion of the periphery to allow of partial protrusion of the periphery of the floating hammer-member and means normally forcing such hammer-member into the protruding position.

11. In a mechanical movement, a driveshaft; a housing of substantially crescent shape secured to and rotating With said shaft; an annular floating hammer-member mounted upon the drive-shaft but unsecured thereto, located Within the crescent-shapedmember, which crescent shaped member maintains said floating-member in a position eccentric to the drive-shaft; and a spring disposed in the crescent-shaped-member, normally forcing the annular floating-memher out through the peripheral orifice between the horns of the crescent to the limit of its play therein, so as to constantly maincentric to the axis of rotation of the shaft and crescent-shaped-member.

12. In a mechanical movement, a driveshaft; a housing of substantially crescent shape secured to and rotating With said shaft; a floating cylindrical hammer-member located within the crescent-shaped-member which crescent-shaped-member maintains said floating hammer-member in a position eccentric to the shaft and protruding peripherally from between the horns of the crescent of the housing to the limit of its play therein, so as to constantly maintain the floating hammer-member axis eccentric to the axis of rotation of the shaft and crescent-shaped-housing.

CARL PAULI. Witnesses:

EDWIN P. JORDAN, KATHERINE A, WEED.

Copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

